parissfrance09
  • parissfrance09
⦁ Please help me!! Which of these are examples of physical properties? Be able to defend your answers. A brown dog- A melting ice cube- A burning campfire- A bendable straw- A rusty nail-
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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parissfrance09
  • parissfrance09
@desuoverlord
parissfrance09
  • parissfrance09
@Nnesha
parissfrance09
  • parissfrance09
@pooja195

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parissfrance09
  • parissfrance09
@mayafrancis
parissfrance09
  • parissfrance09
@SamsungFanBoy
anonymous
  • anonymous
Can you pick more than 1?
parissfrance09
  • parissfrance09
yes
parissfrance09
  • parissfrance09
and i have to explain why an why not
anonymous
  • anonymous
Okay, do you have any idea which ones it might be? Hint: there's more than one
parissfrance09
  • parissfrance09
melting ice burning campfire
anonymous
  • anonymous
Alright, melting ice is correct, that is a physical change. Do you know why?
parissfrance09
  • parissfrance09
no i dont
anonymous
  • anonymous
Well, ice is just solid water, right? Frozen H2O. So basically, when you melt ice, you're just turning a solid into a liquid. Solid/liquid/gas are all a physical state of being. The chemical properties are the still same.
parissfrance09
  • parissfrance09
ohhhhh
anonymous
  • anonymous
Now, burning a campfire, that would have to be chemical. There's one more physical one. The signs of a chemical change are a change in color, formation of a precipitate, formation of a gas, odor change and temperature change. Try again keeping this in mind
parissfrance09
  • parissfrance09
a rusty nail
anonymous
  • anonymous
Rust is definitely a chemical change. It's a chemical reaction to iron and steel reacting to water and oxygen over a long period of time.
anonymous
  • anonymous
Also, I'd actually say there are two other examples of physical properties besides a melting ice cube
parissfrance09
  • parissfrance09
well is it a brown dog
parissfrance09
  • parissfrance09
ohhh and bendable straw
anonymous
  • anonymous
Yes. Do you understand why? Bending a straw changes absolutely nothing about the chemical composition of the straw, you're simply changing its /physical/ state. Now, if you had said that the dog's color changed, that would be chemical. But since it's not, the color of the dog is just one of its physical properties
parissfrance09
  • parissfrance09
okay thank you so so so so so so so so so much
anonymous
  • anonymous
No problem :) happy to help

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